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EP3210050A1 - Tomographie de vitesse utilisant des balayages de propriété - Google Patents

Tomographie de vitesse utilisant des balayages de propriété

Info

Publication number
EP3210050A1
EP3210050A1 EP15750562.9A EP15750562A EP3210050A1 EP 3210050 A1 EP3210050 A1 EP 3210050A1 EP 15750562 A EP15750562 A EP 15750562A EP 3210050 A1 EP3210050 A1 EP 3210050A1
Authority
EP
European Patent Office
Prior art keywords
property
model
velocity
seismic data
migration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15750562.9A
Other languages
German (de)
English (en)
Inventor
Jonathan Liu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Upstream Research Co
Original Assignee
ExxonMobil Upstream Research Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ExxonMobil Upstream Research Co filed Critical ExxonMobil Upstream Research Co
Publication of EP3210050A1 publication Critical patent/EP3210050A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/282—Application of seismic models, synthetic seismograms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/30—Analysis
    • G01V1/303—Analysis for determining velocity profiles or travel times
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/30—Analysis
    • G01V1/306—Analysis for determining physical properties of the subsurface, e.g. impedance, porosity or attenuation profiles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/30—Analysis
    • G01V1/301—Analysis for determining seismic cross-sections or geostructures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/50—Corrections or adjustments related to wave propagation
    • G01V2210/51—Migration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/50—Corrections or adjustments related to wave propagation
    • G01V2210/52—Move-out correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/60—Analysis
    • G01V2210/61—Analysis by combining or comparing a seismic data set with other data
    • G01V2210/614—Synthetically generated data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/60—Analysis
    • G01V2210/62—Physical property of subsurface
    • G01V2210/622—Velocity, density or impedance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/60—Analysis
    • G01V2210/62—Physical property of subsurface
    • G01V2210/626—Physical property of subsurface with anisotropy
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/60—Analysis
    • G01V2210/67—Wave propagation modeling
    • G01V2210/671—Raytracing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/60—Analysis
    • G01V2210/67—Wave propagation modeling
    • G01V2210/675—Wave equation; Green's functions

Definitions

  • This disclosure relates generally to the field of geophysical prospecting and, more particularly, to seismic data processing. Specifically, this disclosure concerns a method for building a subsurface velocity model from seismic reflection data using tomography, where the velocity model will be used in subsequent processing of the seismic data to prospect for hydrocarbons.
  • Tomography may be defined as a method for finding the velocity and reflectivity distribution from a multitude of observations using combinations of source and receiver locations.
  • Reflection tomography uses data from a seismic survey in which both sources and receivers were placed on the surface.
  • migrated gathers offset or angle gathers
  • the flatness of the gathers which is measured by the depth differences of the same reflection event in the different traces of a gather, provides information whether the migration velocity model is correct or not.
  • RDE residual depth errors
  • velocity model or physical property model refers to an array of numbers, typically a 3-D array, where each number, which may be called a model parameter, is a value of velocity or another physical property in a cell, where a subsurface region has been conceptually divided into discrete cells for computational purposes.
  • the invention is a method for a scientific method for transforming seismic data into a subsurface physical property model, comprising constructing the subsurface physical property model by performing tomographic inversion of the seismic data, using a computer, with residual depth errors reconstructed using property scanning, wherein the residual depth errors are reconstructed using the following relationship at each imaging point DA(v m — ⁇
  • A is a matrix built from ray tracing
  • v m is a base migration model of the property
  • v/ is a model of the property as picked from a property scan of migrated seismic data
  • Fig. 1 is a flow chart showing basic steps in one embodiment of the present inventive method.
  • Velocity tomography relies on reliable measurement of RDE, which may not be available in complex imaging areas.
  • a formula is derived that allows one to directly reconstruct RDE from velocity scans.
  • the reconstructed RDE can be imported into conventional tomographic inversion work flow, so that the model will be updated through velocity tomographic inversion.
  • the derivation of the formula is based on the fact that a migrated gather at a reflection point (also called image point) is flat when the depth image is focused at this location, i.e. when the image was migrated using the velocity model that best focuses the image at this location.
  • a velocity scan is constructed, and the scan displays coherency, at that image point, for minimum RDE or maximum stacking power, for different migration images (gathers or stacked section), each representing a different velocity model.
  • a formula, for which the derivation is given in the Appendix, to reconstruct RDE from velocity scans can be expressed at each imaging point as:
  • Dz m DA(v m - v f ) (1)
  • Dz m is the reconstructed RDE
  • z m is migrated depth
  • D is an operator that may be called the deviation operator
  • A is a matrix that consists of the derivatives of the imaged depths with respect to parameters of the velocity model
  • v m is a vector containing the base migration velocity model parameters
  • Vf is a vector containing the parameters of the focusing velocity model picked from property scanning, i.e. from coherency comparison of two or more velocity models.
  • the elements of the matrix A will depend on the model that is used to image the data.
  • a velocity model parameter is the value of wave propagation velocity at a particular cell in the discrete model, typically in 3-D space.
  • Base velocity refers to an initial or current velocity model
  • the focusing velocity refers to the velocity model that gives the most coherent result in the velocity scan that is focused on the particular image point.
  • Equation (1) The validity of equation (1) is based on an assumption of a small perturbation.
  • the difference between the base migration velocity vm and the velocity vf picked from the velocity scan should be small, for example ⁇ 10%.
  • the user selects velocity models that differ from each other by less than some preselected tolerance.
  • equation (2) defines the operator D, i.e. Dz measures the difference for the imaged depths of the same reflection event at different offsets - in other words, a measure of how much error exists in the migration velocity model.
  • the matrix A will be computed in a conventional tomographic inversion work flow; see, for example, Liu - Ref. [2], which reference is incorporated herein in all jurisdictions that allow it.
  • Equation (3) is the same velocity model update equation that is typically used in conventional tomography.
  • Dz m is given by equation (1).
  • the present inventive method obtains a more reliable estimation of Dzm in complex imaging areas, and, therefore, is a more effective way for velocity updating.
  • FIG. 1 is a flow chart showing basic steps in one example embodiment of the present inventive method. It is not shown in the drawings, but a seismic data set is an input quantity required for steps 20 and 30.
  • the seismic data may consist of, for example, common-offset gathers or common-shot gathers.
  • step 10 a suite of velocity models is selected, being mindful of the small perturbation assumption.
  • step 30 a base model is selected, typically one of the velocity models from step 10.
  • model refers to a velocity model, but in the case of an anisotropic medium, this can be a model of a component of velocity, for example the vertical component or the horizontal component, or a model of any one or more of the anisotropy parameters, or the term can refer to any other property of the medium that affects a kinematic property of propagation of acoustic waves, for example the position of horizons that define a region in a velocity model.
  • the base model is the starting model for the iterative tomography inversion process. Also, the matrix A for the tomographic inversion is generated - see ref. [2] for details.
  • the matrix A operating on a velocity model will predict the depth of each image point according to that velocity model.
  • tables of the depth errors are generated for a plurality of image points (preferably all, but at least enough to make an image) for each model selected in step 10.
  • the depth error for each image point is the difference in migrated depth as migrated by a velocity model from step 10 as compared to when migrated by the base migration model.
  • a table of depth errors for a particular image point will thus show a value of depth error for each of various migration velocity models at that image point.
  • migrated images are formed from the seismic data using each of the velocity models selected in step 10.
  • a focusing velocity model is selected, i.e. the velocity model (picked from among the velocity models 10) that maximizes coherency. For example, each trace in a common- image gather (a gather of traces that have a common image point but different offsets) after migration using any one of the velocity models 10 will image a particular reflection point at a somewhat different depth.
  • the selection in step 40 may be performed by picking the migration velocity model that generates the flattest (same depth) migrated gathers at the particular image point.
  • the migrated gathers may, for example, be offset gathers generated by Kirchhoff or beam migration, or angle gathers generated by shot beam migration or wave equation based migration.
  • data representing different offsets may be stacked (summed), and then migrated, and the picking might choose the best migrated stack response, e.g. the best stacked images as generated by Kirchhoff, beam, or wave equation based migration.
  • the method used for picking a velocity model from velocity scan panels is not within the scope of the present inventive method. Any picking method may be used for purposes of the present invention.
  • the depth error tables are generated. This is done by multiplying the tomographic inversion matrix A from step 30 by the difference between the base migration velocity model and, in turn, each of the suite of velocity models selected in step 10, where the velocity models are expressed as vectors.
  • step 60 a depth error is obtained for each image point from the tables from step 50, by picking the error corresponding to the focusing velocity model. Then, in step 70, the depth errors from step 60 are reconstructed using the present inventive method, by applying equation (1) or some equivalent expression.
  • step 80 the velocity model update is obtained by numerically solving equation (3) or an equivalent expression for ⁇ .
  • the right-hand side of equation (3) is the reconstructed residual depth error from step 70, and the matrix A, which is composed of the gradients of imaged depth with respect to the model parameters, comes from step 30.
  • step 30 a simplified step 70 specifying direct measurement of RDE, then steps 80 and 90.
  • Steps 10-40 are common to previous attempts to use velocity scans to update the velocity model.
  • step 80 may be performed using the reconstructed residual depth errors combined with residual depth errors generated using the base migration velocity model.
  • the accuracy of the updated model can be improved by iterating the process (step 90), i.e. returning to the steps 10 and 20, and using the updated model as the base model in step 30. If the suite of velocity models 10 from the previous iteration is considered suitable to use again, the next iteration may skip steps 10, 20, and 40, and begin with step 30 and proceed to 50, 60 and beyond. Preferably, however, the suite of velocity models should be regenerated in step 10 using the new base model, for example with scaling factors.
  • Software for executing the present inventive method on a computer can be developed by adapting existing tomographic inversion software to incorporate the present inventive method for reconstructing residual depth errors.
  • Existing software will, for example, generate the matrix A and solve an equation similar to equation (3), and perform other computational steps needed in tomographic inversion.
  • the tomographic inversion used in the present inventive method may be ray-based or wave-based.
  • A is a matrix built from ray tracing
  • v m is the migration velocity
  • v t is the true velocity
  • z m is migration depth, corresponding to v m
  • z t is the true depth corresponding to v t .
  • Equation (A-2) is used to update velocity from RDE in conventional tomographic inversion.
  • equation (A-l) is a modified version of equation (A-l)

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

L'invention concerne un procédé de construction d'un modèle de sous-surface de la vitesse ou d'une autre propriété élastique à partir de données de réflexion sismique par tomographie. Le procédé utilise des balayages de vitesse pour relever un modèle de vitesse de focalisation au niveau de chaque point d'image (40). Les vitesses de focalisation sont utilisées pour relever des erreurs de profondeur à partir de tables (60) générées à l'aide d'une matrice d'inversion tomographique (30) et une suite de différents modèles de vitesse (10). Les erreurs de profondeur sont ensuite reconstruites au niveau de chaque point d'image à partir des balayages de vitesse sur la base de la différence entre le modèle de vitesse de base et la vitesse la plus cohérente à partir du balayage (70). Les erreurs de profondeur reconstruites sont utilisées pour calculer la mise à jour de modèle de vitesse (80).
EP15750562.9A 2014-10-20 2015-08-05 Tomographie de vitesse utilisant des balayages de propriété Withdrawn EP3210050A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462066206P 2014-10-20 2014-10-20
PCT/US2015/043804 WO2016064462A1 (fr) 2014-10-20 2015-08-05 Tomographie de vitesse utilisant des balayages de propriété

Publications (1)

Publication Number Publication Date
EP3210050A1 true EP3210050A1 (fr) 2017-08-30

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EP15750562.9A Withdrawn EP3210050A1 (fr) 2014-10-20 2015-08-05 Tomographie de vitesse utilisant des balayages de propriété

Country Status (7)

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US (1) US9977141B2 (fr)
EP (1) EP3210050A1 (fr)
AU (1) AU2015337108B2 (fr)
CA (1) CA2961572C (fr)
MY (1) MY182815A (fr)
SG (1) SG11201701786VA (fr)
WO (1) WO2016064462A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10739481B2 (en) * 2016-03-30 2020-08-11 Exxonmobil Upstream Research Company 2D multiline seismic reflection tomography with seismic-tie constraint
US10983237B2 (en) * 2018-04-13 2021-04-20 Saudi Arabian Oil Company Enhancing seismic images
CN110837118B (zh) * 2018-08-17 2021-10-22 中国石油化工股份有限公司 一种多尺度近地表层析速度建模方法及建模系统
CN110051387B (zh) * 2019-04-11 2020-05-19 华中科技大学 一种基于射线理论的超声ct图像重建方法及系统
US11360224B2 (en) 2019-05-03 2022-06-14 Exxonmobil Upstream Research Company Inversion, migration, and imaging related to isotropic wave-mode- independent attenuation
CN112394393B (zh) * 2019-08-13 2023-03-21 中国石油化工股份有限公司 一种crp道集数据体重构的方法
US11320556B2 (en) 2019-08-22 2022-05-03 Chevron U.S.A. Inc. System and method for seismic imaging of complex subsurface volumes
CN112444861B (zh) * 2019-08-27 2024-06-18 中国石油化工股份有限公司 速度模型更新方法、计算机存储介质及计算机系统
US11360230B2 (en) 2019-12-05 2022-06-14 Chevron U.S.A. Inc. System and method for full waveform inversion of seismic data with reduced computational cost
US11947062B2 (en) 2020-02-13 2024-04-02 ExxonMobil Technology and Engineering Company Velocity tomography using time lags of wave equation migration

Family Cites Families (214)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812457A (en) 1969-11-17 1974-05-21 Shell Oil Co Seismic exploration method
US3864667A (en) 1970-09-11 1975-02-04 Continental Oil Co Apparatus for surface wave parameter determination
US3984805A (en) 1973-10-18 1976-10-05 Daniel Silverman Parallel operation of seismic vibrators without phase control
US4168485A (en) 1974-08-12 1979-09-18 Continental Oil Company Simultaneous use of pseudo-random control signals in vibrational exploration methods
US4675851A (en) 1982-09-09 1987-06-23 Western Geophysical Co. Method for seismic exploration
US4545039A (en) 1982-09-09 1985-10-01 Western Geophysical Co. Of America Methods for seismic exploration
US4575830A (en) 1982-10-15 1986-03-11 Schlumberger Technology Corporation Indirect shearwave determination
US4594662A (en) 1982-11-12 1986-06-10 Schlumberger Technology Corporation Diffraction tomography systems and methods with fixed detector arrays
JPS59189278A (ja) 1983-03-23 1984-10-26 橋本電機工業株式会社 ウイケツト型平板乾燥機
JPS606032A (ja) 1983-06-22 1985-01-12 Honda Motor Co Ltd 内燃エンジンの作動状態制御方法
US4924390A (en) 1985-03-04 1990-05-08 Conoco, Inc. Method for determination of earth stratum elastic parameters using seismic energy
US4715020A (en) 1986-10-29 1987-12-22 Western Atlas International, Inc. Simultaneous performance of multiple seismic vibratory surveys
FR2589587B1 (fr) 1985-10-30 1988-02-05 Inst Francais Du Petrole Procede de prospection sismique marine utilisant un signal vibratoire code et dispositif pour sa mise en oeuvre
US4707812A (en) 1985-12-09 1987-11-17 Atlantic Richfield Company Method of suppressing vibration seismic signal correlation noise
US4823326A (en) 1986-07-21 1989-04-18 The Standard Oil Company Seismic data acquisition technique having superposed signals
US4686654A (en) 1986-07-31 1987-08-11 Western Geophysical Company Of America Method for generating orthogonal sweep signals
US4766574A (en) 1987-03-31 1988-08-23 Amoco Corporation Method for depth imaging multicomponent seismic data
US4953657A (en) 1987-11-30 1990-09-04 Halliburton Geophysical Services, Inc. Time delay source coding
US4969129A (en) 1989-09-20 1990-11-06 Texaco Inc. Coding seismic sources
US4982374A (en) 1989-10-23 1991-01-01 Halliburton Geophysical Services, Inc. Method of source coding and harmonic cancellation for vibrational geophysical survey sources
GB9011836D0 (en) 1990-05-25 1990-07-18 Mason Iain M Seismic surveying
US5469062A (en) 1994-03-11 1995-11-21 Baker Hughes, Inc. Multiple depths and frequencies for simultaneous inversion of electromagnetic borehole measurements
GB2322704B (en) 1994-07-07 1998-12-09 Geco As Method of Processing seismic data
US5583825A (en) 1994-09-02 1996-12-10 Exxon Production Research Company Method for deriving reservoir lithology and fluid content from pre-stack inversion of seismic data
EP0766836B1 (fr) 1995-04-18 2003-01-29 Western Atlas International, Inc. Couverture uniforme de subsurface en presence de fort pendage
US5924049A (en) 1995-04-18 1999-07-13 Western Atlas International, Inc. Methods for acquiring and processing seismic data
US5721710A (en) 1995-09-29 1998-02-24 Atlantic Richfield Company High fidelity vibratory source seismic method with source separation
US5719821A (en) 1995-09-29 1998-02-17 Atlantic Richfield Company Method and apparatus for source separation of seismic vibratory signals
US5715213A (en) 1995-11-13 1998-02-03 Mobil Oil Corporation High fidelity vibratory source seismic method using a plurality of vibrator sources
US5822269A (en) 1995-11-13 1998-10-13 Mobil Oil Corporation Method for separation of a plurality of vibratory seismic energy source signals
US5790473A (en) 1995-11-13 1998-08-04 Mobil Oil Corporation High fidelity vibratory source seismic method for use in vertical seismic profile data gathering with a plurality of vibratory seismic energy sources
US5838634A (en) 1996-04-04 1998-11-17 Exxon Production Research Company Method of generating 3-D geologic models incorporating geologic and geophysical constraints
US5798982A (en) 1996-04-29 1998-08-25 The Trustees Of Columbia University In The City Of New York Method for inverting reflection trace data from 3-D and 4-D seismic surveys and identifying subsurface fluid and pathways in and among hydrocarbon reservoirs based on impedance models
GB9612471D0 (en) 1996-06-14 1996-08-14 Geco As Method and apparatus for multiple seismic vibratory surveys
US5878372A (en) 1997-03-04 1999-03-02 Western Atlas International, Inc. Method for simultaneous inversion processing of well log data using a plurality of earth models
US6014342A (en) 1997-03-21 2000-01-11 Tomo Seis, Inc. Method of evaluating a subsurface region using gather sensitive data discrimination
US5999489A (en) 1997-03-21 1999-12-07 Tomoseis Inc. High vertical resolution crosswell seismic imaging
US5920838A (en) 1997-06-02 1999-07-06 Carnegie Mellon University Reading and pronunciation tutor
FR2765692B1 (fr) 1997-07-04 1999-09-10 Inst Francais Du Petrole Methode pour modeliser en 3d l'impedance d'un milieu heterogene
GB2329043B (en) 1997-09-05 2000-04-26 Geco As Method of determining the response caused by model alterations in seismic simulations
US5999488A (en) 1998-04-27 1999-12-07 Phillips Petroleum Company Method and apparatus for migration by finite differences
US6219621B1 (en) 1998-06-30 2001-04-17 Exxonmobil Upstream Research Co. Sparse hyperbolic inversion of seismic data
US6388947B1 (en) 1998-09-14 2002-05-14 Tomoseis, Inc. Multi-crosswell profile 3D imaging and method
US6574564B2 (en) 1998-10-01 2003-06-03 Institut Francais Du Petrole 3D prestack seismic data migration method
FR2784195B1 (fr) 1998-10-01 2000-11-17 Inst Francais Du Petrole Methode pour realiser en 3d avant sommation, une migration de donnees sismiques
US6225803B1 (en) 1998-10-29 2001-05-01 Baker Hughes Incorporated NMR log processing using wavelet filter and iterative inversion
US6021094A (en) 1998-12-03 2000-02-01 Sandia Corporation Method of migrating seismic records
US6754588B2 (en) 1999-01-29 2004-06-22 Platte River Associates, Inc. Method of predicting three-dimensional stratigraphy using inverse optimization techniques
AU3229900A (en) 1999-02-12 2000-08-29 Prange, Michael Uncertainty constrained subsurface modeling
US6058073A (en) 1999-03-30 2000-05-02 Atlantic Richfield Company Elastic impedance estimation for inversion of far offset seismic sections
FR2792419B1 (fr) 1999-04-16 2001-09-07 Inst Francais Du Petrole Methode pour obtenir un modele optimal d'une caracteristique physique dans un milieu heterogene, tel que le sous-sol
GB9927395D0 (en) 1999-05-19 2000-01-19 Schlumberger Holdings Improved seismic data acquisition method
US6327537B1 (en) 1999-07-19 2001-12-04 Luc T. Ikelle Multi-shooting approach to seismic modeling and acquisition
FR2798197B1 (fr) 1999-09-02 2001-10-05 Inst Francais Du Petrole Methode pour former un modele d'une formation geologique, contraint par des donnees dynamiques et statiques
DK1094338T3 (da) 1999-10-22 2006-12-27 Jason Geosystems B V Fremgangsmåde til vurdering af elasticitet og sammensætningsparametre fra seismiske og ekkoakustiske data
FR2800473B1 (fr) 1999-10-29 2001-11-30 Inst Francais Du Petrole Methode pour modeliser en 2d ou 3d un milieu heterogene tel que le sous-sol decrit par plusieurs parametres physiques
US6480790B1 (en) 1999-10-29 2002-11-12 Exxonmobil Upstream Research Company Process for constructing three-dimensional geologic models having adjustable geologic interfaces
DE19954866A1 (de) 1999-11-15 2001-05-31 Infineon Technologies Ag Verfahren zur Behandlung einer durch Epitaxie hergestellten Oberfläche eines SiC-Halbleiterkörpers und danach hergestellten Schottkykontakt
AU774883B2 (en) 2000-01-21 2004-07-08 Schlumberger Holdings Limited System and method for estimating seismic material properties
EP1254383B1 (fr) 2000-01-21 2005-08-24 Schlumberger Holdings Limited Systeme et procede de separation de champs d'ondes sismiques
US6826486B1 (en) 2000-02-11 2004-11-30 Schlumberger Technology Corporation Methods and apparatus for predicting pore and fracture pressures of a subsurface formation
FR2805051B1 (fr) 2000-02-14 2002-12-06 Geophysique Cie Gle Methode de surveillance sismique d'une zone souterraine par utilisation simultanee de plusieurs sources vibrosismiques
GB2359363B (en) 2000-02-15 2002-04-03 Geco Prakla Processing simultaneous vibratory seismic data
US6687659B1 (en) 2000-03-24 2004-02-03 Conocophillips Company Method and apparatus for absorbing boundary conditions in numerical finite-difference acoustic applications
US6317695B1 (en) 2000-03-30 2001-11-13 Nutec Sciences, Inc. Seismic data processing method
US6546339B2 (en) 2000-08-07 2003-04-08 3D Geo Development, Inc. Velocity analysis using angle-domain common image gathers
US6687619B2 (en) 2000-10-17 2004-02-03 Westerngeco, L.L.C. Method of using cascaded sweeps for source coding and harmonic cancellation
US20020120429A1 (en) 2000-12-08 2002-08-29 Peter Ortoleva Methods for modeling multi-dimensional domains using information theory to resolve gaps in data and in theories
FR2818753B1 (fr) 2000-12-21 2003-03-21 Inst Francais Du Petrole Methode et dispositif de prospection sismique par emission simultanee de signaux sismisques obtenus en codant un signal par des sequences pseudo aleatoires
FR2821677B1 (fr) 2001-03-05 2004-04-30 Geophysique Cie Gle Perfectionnements aux procedes d'inversion tomographique d'evenements pointes sur les donnees sismiques migrees
US6751558B2 (en) 2001-03-13 2004-06-15 Conoco Inc. Method and process for prediction of subsurface fluid and rock pressures in the earth
US6927698B2 (en) 2001-08-27 2005-08-09 Larry G. Stolarczyk Shuttle-in receiver for radio-imaging underground geologic structures
US6545944B2 (en) 2001-05-30 2003-04-08 Westerngeco L.L.C. Method for acquiring and processing of data from two or more simultaneously fired sources
US6882958B2 (en) 2001-06-28 2005-04-19 National Instruments Corporation System and method for curve fitting using randomized techniques
GB2379013B (en) 2001-08-07 2005-04-20 Abb Offshore Systems Ltd Microseismic signal processing
US6593746B2 (en) 2001-08-27 2003-07-15 Larry G. Stolarczyk Method and system for radio-imaging underground geologic structures
US7672824B2 (en) 2001-12-10 2010-03-02 Westerngeco L.L.C. Method for shallow water flow detection
US7069149B2 (en) 2001-12-14 2006-06-27 Chevron U.S.A. Inc. Process for interpreting faults from a fault-enhanced 3-dimensional seismic attribute volume
US7330799B2 (en) 2001-12-21 2008-02-12 Société de commercialisation des produits de la recherche appliquée-Socpra Sciences et Génie s.e.c. Method and algorithm for using surface waves
US6842701B2 (en) 2002-02-25 2005-01-11 Westerngeco L.L.C. Method of noise removal for cascaded sweep data
GB2387226C (en) 2002-04-06 2008-05-12 Westerngeco Ltd A method of seismic surveying
FR2839368B1 (fr) 2002-05-06 2004-10-01 Total Fina Elf S A Methode de decimation de traces sismiques pilotee par le trajet sismique
US6832159B2 (en) 2002-07-11 2004-12-14 Schlumberger Technology Corporation Intelligent diagnosis of environmental influence on well logs with model-based inversion
US6906981B2 (en) 2002-07-17 2005-06-14 Pgs Americas, Inc. Method and system for acquiring marine seismic data using multiple seismic sources
FR2843202B1 (fr) 2002-08-05 2004-09-10 Inst Francais Du Petrole Methode pour former un modele representatif de la distribution d'une grandeur physique dans une zone souterraine, affranchi de l'effet de bruits correles entachant des donnees d'exploration
US6832155B2 (en) 2002-09-23 2004-12-14 Itt Manufacturing Enterprises, Inc. Methods and apparatus for determining phase ambiguities in ranging and navigation systems
US6859734B2 (en) 2002-10-04 2005-02-22 Paradigm Geophysical Corporation Method and system for limited frequency seismic imaging
GB2396448B (en) 2002-12-21 2005-03-02 Schlumberger Holdings System and method for representing and processing and modeling subterranean surfaces
US7027927B2 (en) 2002-12-23 2006-04-11 Schlumberger Technology Corporation Methods for determining formation and borehole parameters using fresnel volume tomography
US6735527B1 (en) 2003-02-26 2004-05-11 Landmark Graphics Corporation 3-D prestack/poststack multiple prediction
US6999880B2 (en) 2003-03-18 2006-02-14 The Regents Of The University Of California Source-independent full waveform inversion of seismic data
US7184367B2 (en) 2003-03-27 2007-02-27 Exxonmobil Upstream Research Company Method to convert seismic traces into petrophysical property logs
US7072767B2 (en) 2003-04-01 2006-07-04 Conocophillips Company Simultaneous inversion for source wavelet and AVO parameters from prestack seismic data
EA007911B1 (ru) 2003-04-01 2007-02-27 Эксонмобил Апстрим Рисерч Компани Профилированный высокочастотный вибрационный источник
NO322089B1 (no) 2003-04-09 2006-08-14 Norsar V Daglig Leder Fremgangsmate for simulering av lokale prestakk dypmigrerte seismiske bilder
GB2400438B (en) 2003-04-11 2005-06-01 Westerngeco Ltd Determination of waveguide parameters
US6970397B2 (en) 2003-07-09 2005-11-29 Gas Technology Institute Determination of fluid properties of earth formations using stochastic inversion
US6882938B2 (en) 2003-07-30 2005-04-19 Pgs Americas, Inc. Method for separating seismic signals from two or more distinct sources
GB2405473B (en) 2003-08-23 2005-10-05 Westerngeco Ltd Multiple attenuation method
US6944546B2 (en) 2003-10-01 2005-09-13 Halliburton Energy Services, Inc. Method and apparatus for inversion processing of well logging data in a selected pattern space
US6901333B2 (en) 2003-10-27 2005-05-31 Fugro N.V. Method and device for the generation and application of anisotropic elastic parameters
US7046581B2 (en) 2003-12-01 2006-05-16 Shell Oil Company Well-to-well tomography
US20050128874A1 (en) 2003-12-15 2005-06-16 Chevron U.S.A. Inc. Methods for acquiring and processing seismic data from quasi-simultaneously activated translating energy sources
US7359283B2 (en) 2004-03-03 2008-04-15 Pgs Americas, Inc. System for combining signals of pressure sensors and particle motion sensors in marine seismic streamers
US7791980B2 (en) 2004-05-21 2010-09-07 Westerngeco L.L.C. Interpolation and extrapolation method for seismic recordings
FR2872584B1 (fr) 2004-06-30 2006-08-11 Inst Francais Du Petrole Methode pour simuler le depot sedimentaire dans un bassin respectant les epaisseurs des sequences sedimentaires
EP1617309B1 (fr) 2004-07-15 2011-01-12 Fujitsu Limited Technique de simulation utilisant le raffinement de maillage espace-temps
US7646924B2 (en) 2004-08-09 2010-01-12 David Leigh Donoho Method and apparatus for compressed sensing
US7480206B2 (en) 2004-09-13 2009-01-20 Chevron U.S.A. Inc. Methods for earth modeling and seismic imaging using interactive and selective updating
FR2876458B1 (fr) 2004-10-08 2007-01-19 Geophysique Cie Gle Perfectionnement aux traitements sismiques pour la suppression des reflexions multiples
GB2422433B (en) 2004-12-21 2008-03-19 Sondex Wireline Ltd Method and apparatus for determining the permeability of earth formations
US7373251B2 (en) 2004-12-22 2008-05-13 Marathon Oil Company Method for predicting quantitative values of a rock or fluid property in a reservoir using seismic data
US7230879B2 (en) 2005-02-12 2007-06-12 Chevron U.S.A. Inc. Method and apparatus for true relative amplitude correction of seismic data for normal moveout stretch effects
EP1859301B1 (fr) 2005-02-22 2013-07-17 Paradigm Geophysical Ltd. Suppressions multiples de migration en profondeur et dans le temps dans le domaine angulaire
US7840625B2 (en) 2005-04-07 2010-11-23 California Institute Of Technology Methods for performing fast discrete curvelet transforms of data
WO2006122146A2 (fr) 2005-05-10 2006-11-16 William Marsh Rice University Procede et appareil utilisant la technique du 'compressed sensing' distribue
US7405997B2 (en) 2005-08-11 2008-07-29 Conocophillips Company Method of accounting for wavelet stretch in seismic data
EP1941386A4 (fr) 2005-10-18 2010-03-17 Sinvent As Imagerie de donnees de reponses geologiques avec processeurs de flux
US7373252B2 (en) 2005-11-04 2008-05-13 Western Geco L.L.C. 3D pre-stack full waveform inversion
FR2895091B1 (fr) 2005-12-21 2008-02-22 Inst Francais Du Petrole Methode pour mettre a jour un modele geologique par des donnees sismiques
GB2436626B (en) 2006-03-28 2008-08-06 Westerngeco Seismic Holdings Method of evaluating the interaction between a wavefield and a solid body
US7620534B2 (en) 2006-04-28 2009-11-17 Saudi Aramco Sound enabling computerized system for real time reservoir model calibration using field surveillance data
US20070274155A1 (en) 2006-05-25 2007-11-29 Ikelle Luc T Coding and Decoding: Seismic Data Modeling, Acquisition and Processing
US7725266B2 (en) 2006-05-31 2010-05-25 Bp Corporation North America Inc. System and method for 3D frequency domain waveform inversion based on 3D time-domain forward modeling
WO2007145694A2 (fr) * 2006-06-12 2007-12-21 Exxonmobil Upstream Research Company Mise à jour de modèles de vitesse à l'aide de balayages de vitesse de migration
US7599798B2 (en) 2006-09-11 2009-10-06 Westerngeco L.L.C. Migrating composite seismic response data to produce a representation of a seismic volume
CN101681394B (zh) 2006-09-28 2012-11-21 埃克森美孚上游研究公司 来自并发地球物理源的数据的迭代反演
AU2007330350A1 (en) 2006-12-07 2008-06-12 Council Of Scientific & Industrial Research A method for computing an exact impulse response of a plane acoustic reflector at zero offset due to a point acoustic source
ATE543109T1 (de) 2007-01-20 2012-02-15 Spectraseis Ag Zeitumkehr-reservoir-lokalisierung
WO2008123920A1 (fr) 2007-04-10 2008-10-16 Exxonmobil Upstream Research Company Séparation et suppression du bruit de fond de données sismiques de multiples sources vibratoires
US7715986B2 (en) 2007-05-22 2010-05-11 Chevron U.S.A. Inc. Method for identifying and removing multiples for imaging with beams
US7974824B2 (en) 2007-06-29 2011-07-05 Westerngeco L. L. C. Seismic inversion of data containing surface-related multiples
JP2009063942A (ja) 2007-09-10 2009-03-26 Sumitomo Electric Ind Ltd 遠赤外線カメラ用レンズ、レンズユニット及び撮像装置
US20090070042A1 (en) 2007-09-11 2009-03-12 Richard Birchwood Joint inversion of borehole acoustic radial profiles for in situ stresses as well as third-order nonlinear dynamic moduli, linear dynamic elastic moduli, and static elastic moduli in an isotropically stressed reference state
US20090083006A1 (en) 2007-09-20 2009-03-26 Randall Mackie Methods and apparatus for three-dimensional inversion of electromagnetic data
WO2009067041A1 (fr) 2007-11-19 2009-05-28 Steklov Mathematical Institute Ras Procédé et système pour évaluer les propriétés caractéristiques de deux milieux en contact et de l'interface entre eux à partir d'ondes de surface mélangées se propageant le long de l'interface
US7732381B2 (en) 2007-11-30 2010-06-08 Schlumberger Technology Corporation Conductive cement formulation and application for use in wells
US20090164186A1 (en) 2007-12-20 2009-06-25 Bhp Billiton Innovation Pty Ltd. Method for determining improved estimates of properties of a model
WO2009088602A1 (fr) 2008-01-08 2009-07-16 Exxonmobil Upstream Research Company Inversion de forme spectrale et migration de données sismiques
US8577660B2 (en) 2008-01-23 2013-11-05 Schlumberger Technology Corporation Three-dimensional mechanical earth modeling
NO2260331T3 (fr) 2008-03-21 2018-03-10
EP2265975A4 (fr) 2008-03-28 2017-05-24 Exxonmobil Upstream Research Company Atténuation des ondes de surface dans des milieux spatialement hétérogènes
EP2105765A1 (fr) 2008-03-28 2009-09-30 Schlumberger Holdings Limited Inversion simultanée de données d'induction pour la constante diélectrique et la conductivité électrique
US8275592B2 (en) 2008-04-07 2012-09-25 Westerngeco L.L.C. Joint inversion of time domain controlled source electromagnetic (TD-CSEM) data and further data
US8494777B2 (en) 2008-04-09 2013-07-23 Schlumberger Technology Corporation Continuous microseismic mapping for real-time 3D event detection and location
US8345510B2 (en) 2008-06-02 2013-01-01 Pgs Geophysical As Method for aquiring and processing marine seismic data to extract and constructively use the up-going and down-going wave-fields emitted by the source(s)
US20110182141A1 (en) 2008-08-14 2011-07-28 Schlumberger Technology Corporation Method and system for monitoring a logging tool position in a borehole
US8295124B2 (en) 2008-08-15 2012-10-23 Bp Corporation North America Inc. Method for separating independent simultaneous sources
US8559270B2 (en) 2008-08-15 2013-10-15 Bp Corporation North America Inc. Method for separating independent simultaneous sources
US20100054082A1 (en) 2008-08-29 2010-03-04 Acceleware Corp. Reverse-time depth migration with reduced memory requirements
US8296069B2 (en) 2008-10-06 2012-10-23 Bp Corporation North America Inc. Pseudo-analytical method for the solution of wave equations
US7616523B1 (en) 2008-10-22 2009-11-10 Pgs Geophysical As Method for combining pressure and motion seismic signals from streamers where sensors are not at a common depth
US9213119B2 (en) 2008-10-29 2015-12-15 Conocophillips Company Marine seismic acquisition
US20100118651A1 (en) 2008-11-10 2010-05-13 Chevron U.S.A. Inc. Method for generation of images related to a subsurface region of interest
US20100142316A1 (en) 2008-12-07 2010-06-10 Henk Keers Using waveform inversion to determine properties of a subsurface medium
US8095345B2 (en) 2009-01-20 2012-01-10 Chevron U.S.A. Inc Stochastic inversion of geophysical data for estimating earth model parameters
US8369184B2 (en) 2009-01-26 2013-02-05 Shotspotter, Inc. Systems and methods with improved three-dimensional source location processing including constraint of location solutions to a two-dimensional plane
US9052410B2 (en) 2009-02-12 2015-06-09 Conocophillips Company Multiple seismic signal inversion
US20110299361A1 (en) 2009-02-17 2011-12-08 Changsoo Shin Apparatus and method for imaging subsurface structure
US9110191B2 (en) 2009-03-30 2015-08-18 Westerngeco L.L.C. Multiple attenuation for ocean-bottom seismic data
US8547794B2 (en) 2009-04-16 2013-10-01 Baker Hughes Incorporated Extending the coverage of VSP/CDP imaging by using first-order downgoing multiples
US9075163B2 (en) 2009-04-17 2015-07-07 Westerngeco L.L.C. Interferometric seismic data processing
US7856528B1 (en) 2009-08-11 2010-12-21 Texas Memory Systems, Inc. Method and apparatus for protecting data using variable size page stripes in a FLASH-based storage system
US20110044127A1 (en) 2009-08-19 2011-02-24 Clement Kostov Removing free-surface effects from seismic data acquired in a towed survey
US8923093B2 (en) 2009-08-25 2014-12-30 Westerngeco L.L.C. Determining the quality of a seismic inversion
EP2476080A1 (fr) 2009-09-09 2012-07-18 Conocophillips Company Inversion de forme d'onde complète guidée par pendage
US8406081B2 (en) 2009-09-25 2013-03-26 Landmark Graphics Corporation Seismic imaging systems and methods employing tomographic migration-velocity analysis using common angle image gathers
WO2011040926A1 (fr) 2009-10-01 2011-04-07 Halliburton Energy Services, Inc. Appareil et procédés de localisation d'anomalies de fond de trou
EA027554B1 (ru) * 2009-10-02 2017-08-31 Бп Корпорейшн Норт Америка Инк. Способ разведки углеводородов
US9244181B2 (en) 2009-10-19 2016-01-26 Westerngeco L.L.C. Full-waveform inversion in the traveltime domain
WO2011071812A2 (fr) 2009-12-07 2011-06-16 Geco Technology B.V. Inversion simultanée et conjointe de données d'onde de surface et de réfraction
FR2955396B1 (fr) 2010-01-15 2013-03-01 Cggveritas Services Sa Dispositif de traitement de donnees sismiques marines
CA2787149A1 (fr) 2010-01-22 2011-07-28 Schlumberger Canada Limited Evaluation en temps reel d'anisotropie et d'inclinaison de formation utilisant des mesures d'induction triaxiales
WO2011091367A1 (fr) 2010-01-25 2011-07-28 CGGVeritas Services (U.S.) Inc. Procédés et systèmes d'estimation de contraintes à l'aide de données sismiques
WO2011093945A1 (fr) 2010-01-29 2011-08-04 Exxonmobil Upstream Research Company Stockage temporaire dans un champ de gaz pour optimiser le développement d'un champ
US8265875B2 (en) 2010-01-29 2012-09-11 Westerngeco L.L.C. Interpolation of periodic data
US8537638B2 (en) 2010-02-10 2013-09-17 Exxonmobil Upstream Research Company Methods for subsurface parameter estimation in full wavefield inversion and reverse-time migration
WO2011112932A1 (fr) 2010-03-12 2011-09-15 Cggveritas Services (Us) Inc. Procédés et systèmes pour réaliser une inversion élastique simultanée azimutale
US8680865B2 (en) 2010-03-19 2014-03-25 Schlumberger Technology Corporation Single well reservoir imaging apparatus and methods
US20110235464A1 (en) 2010-03-24 2011-09-29 John Brittan Method of imaging the earth's subsurface during marine seismic data acquisition
US8223587B2 (en) 2010-03-29 2012-07-17 Exxonmobil Upstream Research Company Full wavefield inversion using time varying filters
US9176244B2 (en) 2010-03-31 2015-11-03 Schlumberger Technology Corporation Data set inversion using source-receiver compression
KR101167715B1 (ko) 2010-04-30 2012-07-20 서울대학교산학협력단 복소 구배 최소자승법에의한 파형 역산을 이용한 지하 구조의 영상화 장치 및 방법
US8576663B2 (en) 2010-04-30 2013-11-05 Schlumberger Technology Corporation Multicomponent seismic inversion of VSP data
US8694299B2 (en) 2010-05-07 2014-04-08 Exxonmobil Upstream Research Company Artifact reduction in iterative inversion of geophysical data
US8756042B2 (en) 2010-05-19 2014-06-17 Exxonmobile Upstream Research Company Method and system for checkpointing during simulations
CN102947233B (zh) 2010-06-15 2016-01-27 电化株式会社 透光性硬质基板层叠体的制造方法
US20110320180A1 (en) 2010-06-29 2011-12-29 Al-Saleh Saleh M Migration Velocity Analysis of Seismic Data Using Common Image Cube and Green's Functions
US8612188B2 (en) 2010-07-12 2013-12-17 The University Of Manchester Wave modelling
CA2806874C (fr) 2010-08-16 2016-12-06 Exxonmobil Upstream Research Company Reduction de la dimensionnalite du probleme de l'inversion conjointe
US20120051176A1 (en) 2010-08-31 2012-03-01 Chevron U.S.A. Inc. Reverse time migration back-scattering noise removal using decomposed wavefield directivity
US8781748B2 (en) 2010-09-20 2014-07-15 Chevron U.S.A. Inc. System and method for generating images of subsurface structures
SG188191A1 (en) 2010-09-27 2013-04-30 Exxonmobil Upstream Res Co Simultaneous source encoding and source separation as a practical solution for full wavefield inversion
US8437998B2 (en) 2010-09-27 2013-05-07 Exxonmobil Upstream Research Company Hybrid method for full waveform inversion using simultaneous and sequential source method
GB2497055A (en) 2010-09-28 2013-05-29 Shell Int Research Earth model estimation through an acoustic full waveform inversion of seismic data
WO2012074592A1 (fr) 2010-12-01 2012-06-07 Exxonmobil Upstream Research Company Inversion de source simultanée pour données de flûte sismique marines présentant une fonction objective de corrélation croisée
US9134442B2 (en) 2010-12-16 2015-09-15 Bp Corporation North America Inc. Seismic acquisition using narrowband seismic sources
US9702994B2 (en) 2011-02-18 2017-07-11 Westerngeco L.L.C. Waveform inversion by multiple shot-encoding for non-fixed spread geometries
WO2012134621A1 (fr) 2011-03-30 2012-10-04 Exxonmobil Upstream Research Company Vitesse de convergence d'une inversion d'un champ d'onde complet utilisant une mise en forme spectrale
US20120275267A1 (en) 2011-04-26 2012-11-01 Ramesh Neelamani Seismic Data Processing
US9513389B2 (en) 2011-05-13 2016-12-06 Saudi Arabian Oil Company Coupled time-distance dependent swept frequency source acquisition design and data de-noising
US9075159B2 (en) 2011-06-08 2015-07-07 Chevron U.S.A., Inc. System and method for seismic data inversion
US20120316791A1 (en) 2011-06-08 2012-12-13 Chevron U.S.A. Inc. System and method for seismic data inversion by non-linear model update
US20120316844A1 (en) 2011-06-08 2012-12-13 Chevron U.S.A. Inc. System and method for data inversion with phase unwrapping
US20120316790A1 (en) 2011-06-08 2012-12-13 Chevron U.S.A. Inc. System and method for data inversion with phase extrapolation
ES2640824T3 (es) 2011-09-02 2017-11-06 Exxonmobil Upstream Research Company Utilización de la proyección sobre conjuntos convexos para limitar la inversión del campo de onda completa
US9176930B2 (en) 2011-11-29 2015-11-03 Exxonmobil Upstream Research Company Methods for approximating hessian times vector operation in full wavefield inversion
CN104204857B (zh) 2012-03-08 2017-12-08 埃克森美孚上游研究公司 正交源和接收器编码
US9541661B2 (en) 2012-04-19 2017-01-10 Cgg Services Sa Device and method for deghosting variable depth streamer data
US9435905B2 (en) 2012-04-19 2016-09-06 Cgg Services Sa Premigration deghosting of seismic data with a bootstrap technique
US20130311149A1 (en) 2012-05-17 2013-11-21 Yaxun Tang Tomographically Enhanced Full Wavefield Inversion
CN105308479B (zh) 2013-05-24 2017-09-26 埃克森美孚上游研究公司 通过与偏移距相关的弹性fwi的多参数反演
US10459117B2 (en) 2013-06-03 2019-10-29 Exxonmobil Upstream Research Company Extended subspace method for cross-talk mitigation in multi-parameter inversion
US20140372043A1 (en) 2013-06-17 2014-12-18 Wenyi Hu Full Waveform Inversion Using Perfectly Reflectionless Subgridding

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